The following table explains supported USD file formats in 3ds Max and your general usage for each file format. For more information, see USD Import Options, USD Export Options.
| Type | Format |
|---|---|
| .usd | generalized format in which you can specify between Binary (default) or ASCII |
| .usda | optimized for human-readability, ASCII only |
| .usdc | optimized for machine-readability, Binary only |
| .usdz | optimized for packaged assets |